CN201842108U

CN201842108U - Draw beam of vehicle

Info

Publication number: CN201842108U
Application number: CN2010205546851U
Authority: CN
Inventors: 李华; 吴荣坤; 罗彦平; 程伟
Original assignee: Qiqihar Railway Rolling Stock Co Ltd
Current assignee: CRRC Qiqihar Rolling Stock Co Ltd
Priority date: 2010-09-30
Filing date: 2010-09-30
Publication date: 2011-05-25
Anticipated expiration: 2020-09-30

Abstract

The utility model provides a draw beam of a vehicle. The draw beam of the vehicle comprises a striking casting, a front draft lug, a rear draft lug, a center filler, a top center plate and beam bodies, wherein the striking casting, the front draft lug, the rear draft lug, the center filler, the top center plate and the beam bodies form an integrally formed structure. According to the utility model, all components on the draw beam of the vehicle are manufactured into an integrally formed structure, so that the problems of insufficient strength at welding parts and increased cost caused by great amount of welding works of a draw beam adopting a welding structure in the prior art can be solved. Besides, the thicknesses of the beam bodies at different parts can be designed differently when the structure of the draw beam is integrally formed, so that the load-bearing capacity of the draw beam can be effectively improved.

Description

The draw beam of vehicle

Technical field

The utility model relates to vehicle technology, relates in particular to a kind of draw beam of vehicle.

Background technology

In the rail transport, guideway vehicle is being served as very important role.Guideway vehicle can be according to the difference of object of transport, and is divided into the passenger vehicle of being responsible for passenger transportation and the load carrying vehicle of responsible goods transport.Wherein, because load carrying vehicle needs the bigger goods of domestic shipping weight, therefore, the load-carrying parts of load carrying vehicle just seem particularly important.The underframe of load carrying vehicle promptly is a load bearing component important in the load carrying vehicle car body, and the structure of underframe can be as shown in Figure 1.Wherein, underframe can be divided into the draw beam structure that the draw beam of central sill structure and no central sill are arranged.

As shown in Figure 1, central sill 1 is an elongated beam along the car body longitudinal extension, and draw

beam

2 and 3 lays respectively at the two ends of central sill 1, begins to be respectively draw

beam

2 and 3 from body center plate 2A and 3A.The draw beam structure of no central sill is has only draw beam, comprises the part at body center plate and two ends thereof, does not have a kind of version of the central sill between the body center plate.Central sill and draw beam are load bearing components of paramount importance in the Undercarriage structure, the main responsible vertical and vertical load that vehicle bears that transmits.

The structure of draw beam can wherein mainly comprise striker 21, front draft lug 22, rear draft lug 23, center filler 24, body center plate 25 and beam body 26 as shown in Figure 2.Wherein, the draw beam structure of prior art can realize by following dual mode: first kind of implementation is: B-mode steel draw beam structure, promptly the beam body is formed by two B-mode steel butt welding, as shown in Figure 3.The B-mode girder steel body that butt welding forms links together by the form and the parts such as striker, front draft lug, rear draft lug, center filler and body center plate of welding or riveted joint again, forms complete draw beam structure.Second kind of implementation is: assembly welding draw beam structure, be that the beam body is formed by upper and lower cover plate and web assembly welding, the Liang Tizai that assembly welding forms links together by the form and the parts such as striker, front draft lug, rear draft lug, center filler and body center plate of welding or riveted joint, forms complete draw beam structure.

In realizing the utility model process, the contriver finds that there are the following problems at least in the prior art:

The draw beam structure that this welded structure is formed is done the time spent bearing longitudinal loading, and very high to the requirement of strength of connecting portion between each parts and beam body, welding or the connection mode of riveting are easy to break down; And the thickness of slab at beam body different section place is all identical, in the zone of stressed maximum---and the structure difficulty is bigger when wanting local deepened beam body between the forward and backward follower seat, and poor reliability; Big for the draw beam structure welding job amount of assembly welding structure, efficient is lower, and the beam body after the welding is prone to torsional deflection, is difficult to proofread and correct.

The utility model content

The utility model embodiment provides a kind of draw beam of vehicle, in order to solve in the prior art between parts and beam body the weak link of junction and to weld the negative effects that bring in a large number, has ensured the structural stability and the durability of vehicle towed beam.

The utility model embodiment provides a kind of draw beam of vehicle, comprise striker, front draft lug, rear draft lug, center filler, body center plate and beam body, wherein, described striker, front draft lug, rear draft lug, center filler, body center plate and the beam body structure that is formed in one.

The draw beam of aforesaid vehicle, wherein, the part beam body between described front draft lug and described rear draft lug, its thickness is greater than the thickness of other parts of described beam body.

The draw beam of aforesaid vehicle, wherein, the draw beam of described vehicle is for forging or as cast cast steel draw beam.

The draw beam of aforesaid vehicle, wherein, described cast steel grade is B level, B+ level or C level.

The draw beam of the vehicle that the utility model embodiment provides, by each parts on the draw beam of vehicle are made into the structure that is formed in one, effectively overcome in the prior art welded draw beam in the insufficient strength of weld, and the cost that a large amount of welding job is brought improves problem.And the beam body thickness of different parts can be designed as difference when the draw beam structure is one-body molded, effectively improves the load-carrying capacity of draw beam.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the structural representation of floor underframe for vehicle in the prior art;

Fig. 2 is the structural representation of draw beam among Fig. 1;

Fig. 3 is the structural representation of Fig. 2 central sill body;

The structural representation of the draw beam embodiment of the vehicle that Fig. 4 provides for the utility model.

Reference numeral:

The 1-central sill; 2, the 3-draw beam; 2A, the 3A-body center plate;

The 21-striker; The 22-front draft lug; The 23-rear draft lug;

The 24-center filler; The 25-body center plate; 26-beam body;

The 41-striker; The 42-front draft lug; The 43-rear draft lug;

The 44-center filler; The 45-body center plate; 46-beam body.

The specific embodiment

For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.

The structural representation of the draw beam embodiment of the vehicle that Fig. 4 provides for the utility model, in conjunction with shown in Figure 4, the draw beam of this vehicle comprises: striker 41, front draft lug 42, rear draft lug 43, center filler 44, body center plate 45 and beam body 46.Wherein, above-mentioned each parts structure that is formed in one.

The draw beam of the vehicle that provides in the present embodiment, according to each parts may bearing load different situations, the beam body thickness of different parts can be different, thereby bring into play the effect of material more fully, improve the load-carrying capacity of the draw beam of vehicle under the situation of identical weight.For example, part beam body between front draft lug 42 and rear draft lug 43, it is the position of bearing load maximum, therefore when the draw beam of one-body molded this vehicle, can be thickness with the Thickness Design of this part beam body greater than other parts of beam body, thereby make that this part girder construction is more reliable, the load that can bear is bigger.

Above-mentioned integrated formed structure can form by the mode of casting or forging etc., and formed draw beam is the cast steel draw beam.Owing to be integrated formed structure, the material that striker 41, front draft lug 42, rear draft lug 43, center filler 44, body center plate 45 and beam body 46 are adopted is commaterial, for guaranteeing the intensity of each parts, preferably the cast steel grade of using is B level, B+ level or C level.

The draw beam of a kind of vehicle that the utility model provides, by each parts on the draw beam of vehicle are made into the structure that is formed in one, effectively overcome in the prior art welded draw beam in the insufficient strength of weld, and the cost that a large amount of welding job is brought improves problem.And the beam body thickness of different parts can be designed as difference when the draw beam structure is one-body molded, effectively improves the load-carrying capacity of draw beam.

It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.

Claims

1. the draw beam of a vehicle comprises striker, front draft lug, rear draft lug, center filler, body center plate and beam body, it is characterized in that described striker, front draft lug, rear draft lug, center filler, body center plate and the beam body structure that is formed in one.

2. the draw beam of vehicle according to claim 1 is characterized in that, the part beam body between described front draft lug and described rear draft lug, and its thickness is greater than the thickness of other parts of described beam body.

3. the draw beam of vehicle according to claim 1 and 2 is characterized in that, the draw beam of described vehicle is for forging or as cast cast steel draw beam.

4. the draw beam of vehicle according to claim 3 is characterized in that, described cast steel grade is B level, B+ level or C level.